# K232520: Fingertip Pulse Oximeter, models Alpine20, Alpine20A, Alpine20H, Alpine20HA, Alpine20B, Alpine20BA, Alpine20BH, Alpine20BHA, Alpine30, Alpine30A, Alpine30H, Alpine30HA, Alpine30B, Alpine30BA, Alpine30BH, Alpine30BHA, Alpine20L, Alpine20LB, Alpine20LH, Alpine20LBH, Alpine30L, Alpine30LB, Alpine30LH, Alpine30LBH

- Pathway: 510(k) (Traditional)
- Applicant: Shenzhen Smallsignal Technology Co., Ltd.
- Decided: Nov 21, 2024 after 461 days
- Product code: DQA (Oximeter)
- Device class: 2
- Regulation: 21 CFR 870.2700
- Recalls of this device: none
- Data: FDA decisions to Oct 25, 2026; recalls to Oct 12, 2026

## Lineage
Longest line of descent: 8 generations back to K001085 (2000). 8 ancestors in all.
No later device cites it as a predicate yet.
0 of 9 devices in its family (counting itself) have a Class I recall.

## Predicates on the family tree (from the FDA summary)
- K202173: Pulse Oximeter, Shenzhen AOJ Medical Technology Co., Ltd. (2020) Summary page 5.

## Indications for use
The pulse oximeter is a reusable device and intended for spot-checking of oxygen saturation and pulse rate for use with the finger of adult patients in healthcare environment. And it is not intended to be used under motion or low perfusion scenarios.

Source page: https://510kreport.com/device/K232520
Methodology: https://510kreport.com/methodology